ANDRITZ employs technologies that combine pre-shredding, post-shredding, sorting, and drying so that the entire flow of waste can be separated into organic and inorganic components.
Valuable fractions, such as metals, can be removed early in the process and appropriately recycled. The metal fraction, often with plastics or textiles still adhering to it, can be cleaned. Composite materials can be broken down with the Universal Cross-Flow Shredder QZ. In the end, the steel scrap and non-ferrous metals can be recovered with a superior purity of 98% – perfect for use in the steel industry or re-processing in foundries.
With minor additional processing, the non-recyclable residual fractions often have a high calorific value making them suitable as a fuel source for cement kilns, steel industry boilers, or for co-firing in power plants.
MSW and C&I waste contain many different materials that need to be separated mechanically into a high- and a low-calorific fraction. This process involves shredding, screening and classifying of the material. Metals, inerts and organics are removed; light fractions with high-calorific value (e.g. plastics, textile and paper) remain. The RDF fraction could be used in the cement industry, steel furnaces or power stations, substituting coal and oil.
The high-quality Universal Rotary Shear UC and Universal Granulator UG are used for primary and secondary shredding. Quickly interchangeable screens allow many different output sizes.
In order to optimize the output quality shredding can be combined with
ANDRITZ plants for the production of Refuse Derived Fuels (RDF)
